angle of fall

音标/əʊləɪ/，翻译为“落角”或“跌角”，基本意思是“(两物体之间的)落角，跌角；角度；斜角”。速记技巧可以使用谐音记忆法，将其谐音为“饿老狼”，表示饥饿的老狼有跌角的需求。

Angle of Fall的英文词源是拉丁语“angulus”和“fallere”，意思是“小角”和“欺骗”。

变化形式：

1. Angle of Fall（下降角度）

2. Falling angle（下降角度）

相关单词：

1. Fall（下降） - 词源同angle of fall，表示物体从高处向低处运动。

2. Drop（落下） - 词源同angle of fall，表示物体从高处自由落体。

3. Slope（斜坡） - 指物体在斜面上向下运动的角度。

4. Plunge（猛烈下降） - 指物体急剧下降。

5. Falling speed（下降速度） - 表示物体在下降过程中的速度。

6. Falling rate（下降速率） - 表示物体下降的速度或程度。

7. Falling angle rate（下降角度速率） - 表示物体下降角度的变化速度。

8. Falling angle curve（下降角度曲线） - 表示物体下降角度随时间变化的曲线。

9. Falling angle rate curve（下降角度速率曲线） - 表示物体下降速度随时间变化的曲线。

10. Falling angle trajectory（下降角度轨迹） - 表示物体在重力作用下沿下降角度的轨迹。

常用短语：

1. angle of approach

2. angle of incidence

3. angle of repose

4. drop from a height

5. drop angle

6. terminal velocity of a falling object

7. angle of impact

例句：

1. The angle of approach between the two cars was such that they collided.

2. The angle of incidence determines how much energy is reflected by a surface.

3. The angle of repose of the sand pile is such that it tends to slide downhill.

4. A water droplet falling from a height evaporates quickly in the sunlight.

5. The object fell at a steep angle and bounced several times before coming to rest.

6. The impact of the falling object caused a hole to appear in the wall.

7. The angle of impact between the car and the tree was such that the car was totalled.

英文小作文：

Title: The Mystery of Falling Objects

When we look at objects falling from a height, we often wonder why they fall at a certain angle and not straight down. This is because objects fall under the influence of gravity, which acts perpendicularly downward towards the ground. However, there are certain factors that influence the angle at which an object falls, such as air resistance and the shape of the object itself.

When an object is released from a height, it experiences a force called terminal velocity, which is the speed at which the object slows down and stops falling. This speed depends on the mass and shape of the object, as well as the air resistance it encounters as it falls. Therefore, objects with different shapes and masses will fall at different angles, with some objects even spinning as they fall due to air resistance.

In conclusion, the angle at which an object falls is determined by various factors, including gravity, air resistance, and the shape of the object itself. Understanding these factors can help us better understand the behavior of falling objects and how they interact with their environment.